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What is the maximum amount of memory Lightroom Classic can access?

New Here ,
Apr 20, 2020

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I've been testing to see if I could replace Photoshop with Lightroom for processing images given the power of the latest Range Masking capabilities.  Even with 64GB of memory and SSD storage of my catalog and images, processing invariably slows down as I add filters until it takes more than 5 minutes to complete an operation or LR crashes.  The size of images, from 42MB DNGs to miniscule Smart Previews or JPEGs, doesn't seem to matter so much as the number of filters applied to an image.  I'm assuming Lightroom holds all edits in DRAM, unlike Photoshop which pages data in and out as needed.  So if I built a workstation with 1TB of memory, could I significantly increase the number of Lightroom filters that could be applied to a single image?

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What is the maximum amount of memory Lightroom Classic can access?

New Here ,
Apr 20, 2020

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I've been testing to see if I could replace Photoshop with Lightroom for processing images given the power of the latest Range Masking capabilities.  Even with 64GB of memory and SSD storage of my catalog and images, processing invariably slows down as I add filters until it takes more than 5 minutes to complete an operation or LR crashes.  The size of images, from 42MB DNGs to miniscule Smart Previews or JPEGs, doesn't seem to matter so much as the number of filters applied to an image.  I'm assuming Lightroom holds all edits in DRAM, unlike Photoshop which pages data in and out as needed.  So if I built a workstation with 1TB of memory, could I significantly increase the number of Lightroom filters that could be applied to a single image?

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Apr 20, 2020 0
dj_paige LATEST
LEGEND ,
Apr 20, 2020

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A common problem, the more local adjustments you do on an individual image, the slower Lightroom gets. This is made worse by 4K or larger monitors and large size original images (let's say above 30 megapixels).

 

ADDING MEMORY CANNOT FIX THIS PROBLEM. The problem is not memory, it is that computation time gets longer as you add more local adjustments, and so CPU speed or GPU speed is the key. 

 

You might want to try turning off the GPU acceleration. You might want to try a 1920x1080 monitor. You might want a faster CPU. You might want to do local adjustments in Photoshop.

 

 

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